Apparatus for heating and cooling liquids.



. A. JENSEN.

APPARATUS POR 'HEATING AND COOLING LIQUIDS.

APPLICATION FILED JUNE 16, 1908.

1N VENTOR,

ATTORNEY.

PATENT OFFICE.

AAGE JENSEN, OF EUREKA, CALIFORNIA.

APPARATUS FOR HEATING AND COOLING LIQUIDS.

To all whom it may 'cocemll n .v Be 1t known that I, AAGEJENSEN, a citizen of the United States', residing at E y `ureka, in the county of Humboldt andState 'of California, have inventedlnewand useful Improvements in Ap Cooling Liquids, o specication. v

The resent inventinrelates to an apparatus or heatingv or cooling li iiids, being especially adapted forcoolingmilgln or cream, or for heating thev samefor thek purpose of V,aratus for Heating and Vthe following is a pasteurization or the ilikegthe objectsof the invention being tdprovidefan apparatus of this character whi produce a` .regular and uniform circulationin'ftheliquid, which can tbe operate-d witha minimumkexpenditure' of power, andl` which-`can be.vefry readily' maintained cleanfandin a saniitarycondif tion. f n

An especial objeetwof the invention is` to' provide an apparatusjfthis character which ltion is preciselyfjthe jiward through" said.;l gui will be entirely free from yb ports for moving'p In the accom mya in a vertical sectionaot'rny pro l certain parts being'lshownin side"elevation;` and Fig. 2 is an enlarged'verticalsection of theupper portion off theiapparatus.

Re erring to the drawing, 1= indicates a suitable receptacle for the milk,` cream, or other li uid tobe treated, which ymay be either cylindrical in form,whereo1ily a single heating or cooling applianceis used, `or elongated, when there are usada .number rof such appliances, preferab nifl-ine `with each other. l inasmuch as the principle-"of operay saine whether 4one or more of such appliances areused, and the re-v ceptacle is correspondinglyiformed, it will be sufficient to describe the apparatus when used with a' single heating` or cooling appliance, in which case the receptacle is preferably made cylindrical. f ,laid receptacle has a suitable metallic 'lining'fZj-and stands upon legs 3. l It is closed by acover 4, inl the center of whichy is.secuipd'avertical tubular guide 5, upon the upper-[edge oswhich is a runway 6 for balls-'7up`on lwhich rotates a sleeve 8 securedl to antube9 extending down- Y e `Said sleeve is formed with a beveifgeanw Vwhich meshes with a bevel gear-11 on a horizontal shaft 1.2 supported in a bearn`gn13- upon the cover 4 :annular channel .valve 36, and in Patented .rune s, 190e.

of the receptacle and driven by a pulley 14 om any suitable-source of power, thereby lmpartin rotation to the bevel gear 10 and to the tu ve 9. 1

-Secured upon' the bearing 13 for the hori- Vzontalshaft tubev 9, said bearing eing formed with an 16 with which connects lan Aoutlet pi-e 17, said bearing being provided with stu ng boxes 18, 19, above and below 1s an up er bearing 15 for thel said channel 16. Said outlet pipe 17 communicates with the tube 9 through holes 20 formed Vin the latter opposite to the channel 16; The lower end of said tube 9 is screwed into a sleeve 21, -having an annular channel 22 in itsinner surface, saidl tube 9 connecting with said channel 22 by holes 23 formed in said tubel,V Into said sleeve 21 is also screwed the u per end of the lower tube .24, closed at the ottom by a head 25. With the bottom of said lowertube communicate the ends of helical tubes 26, two being here shown, although three, four, or any other numberm'ay be used. Said helical tubes 26 connect with said lower tube at points diauplperv ends'with said sleeve 21, whereby said he ical tubes are balanced on lthe central tube. The upper ends of the helical tubes 26 open into the channel 22 and thus connect withthe tube 9. v Y 27 indicates the inlet pipe, with which connect a ipe 28 for admitting cold water, a pi e 29 or admittin brine, and a i e 30 for a mitting steam. ne or more o` t ese can be used selectively for the purpose of lcooling or heating. The pipe 27 makes a tight connection with the upper end of the tube 9 by means of a stuiiing box 31. Within said tube 9 a smaller tube 32, open at each end, extends from a oint above the outlet pi e 17 to a point be ow the o enings 23 into t e sleeve 21, said open en s being separated from the space between said inner and outer tubes by means of upper and lower heads 33, 34. Thus the inlet pipe 27, communicates, by means ofthe inner tube 32, only with the low`er tube 24.

Connecting the outlet pipe 17 with the inlet pipe 27 is a pipe 35 having therein a check addition sald outlet pipe 17 has a stand-pipe 37 havin a higher point than the inlet. Y

vso Vmetrcally opposite to each other, and said `helical tubesy connect in like manner at their an overflow 38 at v thereto are thereby set Vdeflect the same from the vertical.

The liquid tobe treated can be drawn off from the receptacle by a pipe 39 which is closed by a valve 40 having a stern 41 which can be raised by a lever 42. The liquid to be treated can be supplied to the interior of the receptacle through suitable doors 43 in the cover.

The operation of the apparatus is as follows: The liquid to be treated having been supplied to the casing, and power having been sup lied to the shaft 1'2, the inner and outer tubes and the helical coil connected in rotation, a very small amount of power being needed therefor on account of the whole weight being suspendeduponthe ballbearinl Su posing, now, that it be desired to eat sai liquid, and the inner, outer and helical tubes being iilled with water, steam is admitted by the inlet pipe 27, which causes the water to flow, as shown by the arrows, down the 'inner tube 32, below the lower head to the lower tube 24, thence into the helical tubes 26, flowin up the same, thence into the circular channe in the sleevel 21, thence through the opening 23 into the space between the inner and outer tubes and to the upper portion of the outer tube 9, thence through the openings 20 at the top of said outer tube into t 1e channel 16, thence to the outlet pipe 17, Athence by the connecting pipe 35 t rou h the check valve 36 to the inlet pipe 27, an thus iiowing in a continuous circuit. Any excess of water condensed from the steam will iow off by the overflow pipe. The heated coils, thus revolving within the receptacle, heat the liquid therein, and at the same time roduce a circulation and agitation, the liquid flowing upward at the center and downward at the outer portions of the receptacle, so that the liquid is maintained at a uniform temperature therewithin. Owing to the fact that the pressure on the central tube due to the wei ht of the vertical and helical tubes and to t e pressure thereon of the liquid 'is unil form on all sides,- said tube is perfectly ball anced and there is no tendency whatever to i It will readily bev seen that allthe parts of the apparatus are readily accessible so that the apparatus can be easily maintained in a l sanitary condition.

When the valve for the outlet pipe is located at a distance from thel entrance into l said pipe from the receptacle, the liquid in l means for ,conducting li said pipe escapes the pasteurizing or cooling action. y

By placing the outlet valve at the entrance to the outlet pipe from the interior of the casing, the liquid is entirely excluded from said outlet pipe until the valve is opened, so that all of the liquid is exposed tothe action of the helical tubes.

It will be observed that all of the bearings or supports for the moving parts are in such positions that they do not come into contact with the liquid to be treated.

While the o eration of the apparatus has been describe when usedfor heating, it will be readily understood that, to use the apparatus for cooling, all that is necessary 1s to supply cold brine or other cooling fluid in the place of steam.

I claim 1,-

1. The combination of a suitable rece tacle, a cover therefor, a bearing sup orte by said cover, an outer tube rotatab e in said bearing, a stationary discharge pipe, and

` uid from said rotatable, outer tube to said iseharge ipe, a tortuous conduit within the lreceptac e, an inner tube within the outer tube, said outer tube being in communication with one end of said conduit and the inner tube of the other end thereof, a head around the upper end of the inner tube and within the outer tube, a stationary inlet pipe leading to the upper end of the inner tube, and a stulling box around said pipe on said o uter tube, substantially as described.

2. The combination of a suitable receptacle, a cover therefor, a tortuous conduit in said receptacle, a bearing supported on said cover, an outer tube rotating in said bearing, an inner tube within the outer tube, said inner and outer tubes being connected only with opposite ends of the tortuous conduit, a supply tube connected only with the inner tube, a discharge pipe connected only with the outer tube, and a connection between the su ply and discharge pipes having a cheek va ve therein, substantially as described.

In testimony whereof l have hereunto set my hand in the presence of two subscribing witnesses.

AA( iE J EN SEN Witnesses:

FnANcns 'M. WRIGHT, D. B. RICHARDS.. 

